// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_RENDERER_SKIA_BENCHMARKING_EXTENSION_H_
#define CONTENT_RENDERER_SKIA_BENCHMARKING_EXTENSION_H_

#include "base/macros.h"
#include "gin/wrappable.h"

namespace blink {
class WebFrame;
}

namespace gin {
class Arguments;
}

namespace content {

class SkiaBenchmarking : public gin::Wrappable<SkiaBenchmarking> {
public:
    static gin::WrapperInfo kWrapperInfo;
    static void Install(blink::WebFrame* frame);

    // Wrapper around SkGraphics::Init that can be invoked multiple times.
    static void Initialize();

private:
    SkiaBenchmarking();
    ~SkiaBenchmarking() override;

    // gin::Wrappable.
    gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
        v8::Isolate* isolate) override;

    // Rasterizes a Picture JSON-encoded by cc::Picture::AsValue().
    //
    // Takes a JSON-encoded cc::Picture and optionally rasterization parameters:
    //   {
    //     'scale':    {Number},
    //     'stop':     {Number},
    //     'overdraw': {Boolean},
    //     'clip':     [Number, Number, Number, Number]
    //   }
    //
    // Returns
    //  {
    //    'width':    {Number},
    //    'height':   {Number},
    //    'data':     {ArrayBuffer}
    //  }
    void Rasterize(gin::Arguments* args);

    // Extracts the Skia draw commands from a JSON-encoded cc::Picture.
    //
    // Takes a JSON-encoded cc::Picture and returns
    // [{ 'cmd': {String}, 'info': [String, ...] }, ...]
    void GetOps(gin::Arguments* args);

    // Returns timing information for the given picture.
    //
    // Takes a JSON-encoded cc::Picture and returns
    // { 'total_time': {Number}, 'cmd_times': [Number, ...] }
    void GetOpTimings(gin::Arguments* args);

    // Returns meta information for the given picture.
    //
    // Takes a base64 encoded SKP and returns
    // { 'width': {Number}, 'height': {Number} }
    void GetInfo(gin::Arguments* args);

    DISALLOW_COPY_AND_ASSIGN(SkiaBenchmarking);
};

} // namespace content

#endif // CONTENT_RENDERER_SKIA_BENCHMARKING_EXTENSION_H_
